Home / 815,856.30-1,223,784.45-532,421.10

Finding the Fourth Proportional to 815,856.30, 1,223,784.45 and 532,421.10

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Solution

The fourth proportional to 815,856.30, 1,223,784.45 and 532,421.10 is: 798,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,856.30 : 1,223,784.45 = 532,421.10 : x
  2. Step 2: Convert to fraction form
    815,856.30/1,223,784.45 = 532,421.10/x
  3. Step 3: Cross multiply
    815,856.30x = 1,223,784.45 × 532,421.10
  4. Step 4: Simplify right side
    815,856.30x = 651,568,663,031.90
  5. Step 5: Solve for x
    x = 651,568,663,031.90/815,856.30
  6. Step 6: Final answer
    x = 798,631.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.